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noop_engine.go
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noop_engine.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.ZETA file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package pow
import (
"github.com/zeta-protocol/zeta/core/blockchain/abci"
"github.com/zeta-protocol/zeta/libs/crypto"
protoapi "github.com/zeta-protocol/zeta/protos/zeta/api/v1"
"github.com/ethereum/go-ethereum/common/math"
)
type NoopEngine struct {
blockHeight uint64
blockHash string
}
func NewNoop() *NoopEngine {
return &NoopEngine{}
}
func (e *NoopEngine) BeginBlock(blockHeight uint64, blockHash string) {
e.blockHeight = blockHeight
e.blockHash = blockHash
}
func (e *NoopEngine) EndOfBlock() {}
func (e *NoopEngine) Commit() {}
func (e *NoopEngine) CheckTx(tx abci.Tx) error {
return nil
}
func (e *NoopEngine) DeliverTx(tx abci.Tx) error {
return nil
}
func (e *NoopEngine) IsReady() bool { return true }
func (e *NoopEngine) SpamPoWNumberOfPastBlocks() uint32 { return uint32(0) }
func (e *NoopEngine) SpamPoWDifficulty() uint32 { return uint32(0) }
func (e *NoopEngine) SpamPoWHashFunction() string { return "" }
func (e *NoopEngine) SpamPoWNumberOfTxPerBlock() uint32 { return uint32(0) }
func (e *NoopEngine) SpamPoWIncreasingDifficulty() bool { return false }
func (e *NoopEngine) BlockData() (uint64, string) {
return e.blockHeight, e.blockHash
}
func (e *NoopEngine) GetSpamStatistics(_ string) *protoapi.PoWStatistic {
var expected uint64
return &protoapi.PoWStatistic{
NumberOfPastBlocks: 500,
BlockStates: []*protoapi.PoWBlockState{
{
BlockHeight: e.blockHeight,
BlockHash: e.blockHash,
TransactionsSeen: 0,
ExpectedDifficulty: &expected,
HashFunction: crypto.Sha3,
Difficulty: 0,
TxPerBlock: math.MaxUint64,
IncreasingDifficulty: true,
},
},
}
}